| 岩质边坡在降雨条件下的稳定性分析 |
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| 引用本文： | 张卓,练继建,杨晓慧,赵玉肖.岩质边坡在降雨条件下的稳定性分析[J].哈尔滨工业大学学报,2009(10):202-205. |
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| 作者姓名： | 张卓 练继建 杨晓慧 赵玉肖 |
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| 作者单位： | 重庆交通大学土木建筑学院;天津大学建筑工程学院;重庆高速公路发展有限公司垫利分公司;河北交通职业技术学院 |
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| 基金项目： | 重庆交通大学山区道路建设与技术维护重点实验室开放基金项目 |
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| 摘 要： | 雨水入渗改变了岩质边坡非饱和区渗流场的分布,是引发边坡滑坡的主要因素之一.在极限平衡理论和非饱和土抗剪强度理论基础上,引入了渗透力的概念,利用有限单元法进行了降雨条件下岩质边坡稳定性的分析.最后,利用编制的边坡稳定程序进行了算例分析,结果表明,岩体边坡的稳定安全系数随着雨水的不断渗入在逐渐地降低,即降雨入渗对边坡的稳定具有不利影响.
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| 关 键 词： | 稳定 非饱和 有限单元法 渗透力 |
Stability of rock slope under rainfall |
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| ZHANG Zhuo,LIAN Ji-jian,YANG Xiao-hui,ZHAO Yu-xiao.Stability of rock slope under rainfall[J].Journal of Harbin Institute of Technology,2009(10):202-205. |
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| Authors: | ZHANG Zhuo LIAN Ji-jian YANG Xiao-hui ZHAO Yu-xiao |
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| Affiliation: | 1.Shool of Civil Engineering & Architecture,Chongqing Jiaotong University,Chongqing 400074,China;2.Tianjin University,Tianjin 300072,China;3.Dianli Subcompany of Chongqing Expressway Development Co,.Ltd,,Chongqing 400074,China;4.Hebei College of Communication Technology,Shijiazhuang 050091,China) |
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| Abstract: | Rainwater infiltration changes the distribution of seepage flow field in unsaturated zone of slope,which is one of the main factors inducing the rock slope to slip.The conception of seepage force is introduced and the finite element method is used to analyze the stability of rock slope under rainfall,based on theories of limiting equilibrium and the shear strength of unsaturated earth.An example is analyzed using the designed program for slope stability.Results show that the stability safety coefficient of rock slope is gradually reduced with continuous rainwater seepage,which indicates that the rainwater infiltration has bad effect on slope stability. |
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| Keywords: | stability unsaturated finite element method seepage force |
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